cisco networking academy at vocational training authority srilanka.(vtasl)

vtasl started cisco ccna networking academy program in kandy , colombo , galle centres in last year. they have fully equiped labs also. you can get more info via website. http://www.vtasl-cisco.com
posted by roshan herath ( roshan herath )

twitter helped me to identify new friends and bloggers.

before i get an invitation to twitter from litefmsrilanka i didnt know what is twitter and the use of it. but now i know there are several people in srilanka , who are blogging in many languages and help each other if wanted a help. i know now i could get many news and help from following in twitter. last week there was a dos attack and created many problems to twitter. now its okey. hope twitter willnot face such an attack.
...by roshan herath

Cracking Anti-Virus

what is the use of an Anti-Virus ? How can they protect us from vulnerabilities? Many people don't know what is an Anti-Virus and the role of Anti-Virus. So , they install Anti-Virus on their PCs to protect from viruses. It's good , but they never think to update them. They think “ we have installed an Anti-Virus, we are protected.” but the truth is if the Anti-Virus database is older from 1 second ; it will be dangerous because in every second there are several new viruses joins to the Internet.


Another fact is many people don't like to use free softwares. It's same to about Anti-Viruses. They think free Anti-Virus s will not do their job perfectly and they will not identify viruses. So, they depend on commercial Anti-Virus s. But they never buy any commercial version from the original dealer with license. They use cracking and key-gens to install and register the Anti-Virus. Then how could we expect the actual protection from the original licensed software? There are several holes that cracker or key-gen maker created in the Anti-Virus to ease their several works using our PCs.


Although we update the Anti-Virus database , the Anti-Virus database couldn't find some vulnerabilities due to the holes in the Anti-Virus. Then our PC will be used for DoS, DDoS attacks or as a Zombie.


After they identify there are several viruses and vulnerabilities , they blame to the Original Anti-Virus Manufacturer and change their Anti-Virus to another commercial Anti-Virus, but again it's a pirated copy. Then they use that Anti-Virus till they find their PC contains many viruses and vulnerabilities. Then change the Anti-Virus.


Why people can't use free Anti-Virus softwares that provided by many manufacturers. They provide enough security for the PC, and it's better than using pirated commercial Anti-Virus softwares.

Posted by : Roshan Herath [ roshanherath ]